TD 92685EN
28 June 2012 / Ver. A
Troubleshooting Guide
Ascom i62 VoWiFi Handset
33
5. The VoWiFi Handset as
5. The VoWiFi Handset as a Troubleshooting Tool
The handset provides the following kinds of built in troubleshooting tools that display
information directly in the handset LCD:
• Information about the configuration of the handset. The Device Info menu is used by the
support engineer to check handset config
uration parameters.
• Information about the site that the handset operates in. The Site survey tool is used by
the support engineer to c
heck for possible RF problems caused by the layout of the site.
•The Admin menu for setting certain handset parameters and accessing logging tool
menus fo
r troubleshooting the RF environment
Handset commands are accessed using shortcuts. To use a shortcut, ensure
that the handset
main screen is displayed and then enter a shortcut in the format described below:
Shortcut Information Provided
*#34# Handset device information. See section 5.1 Handset Device
Information on page 33.
*#76# Turn on and turn off the Received Signal Strength Ind
i
cator (RSSI)
display. See section 5.2.1 Show RSSI on page 33.
*#77# Site survey tool. See section 5.2 Site Survey Tool on page 33.
5.1 Handset Device Information
The support engineer uses the handset information to check the values of parameters that
define the configuration of the handset. Some of these entities are static, for example, the
values of the software configuration parameters reflect the date, time and version of the
last software upgrade. Other parameters however are dynamic, and vary under different
circumstances. For example, the SSID and channel number parameters will change as the
user roams through the network.
To display information about the configuration, sele
ct
Menu > Settings > Device info or use
the shortcut *#34#. Detailed device information about the configuration of the handset is
described in Appendix B.1.
5.2 Site Survey Tool
The handset is the recommended tool for performing a site survey because of its radio
performance. A laptop computer does not share the same characteristics as a handset and
should not therefore be used to perform site surveys. To display site survey information in
the handset, use the shortcut **#77#.
The site survey tool can be used to:
• Measure signal strength from all APs in the network
•
Check for roaming candidates
• Detect areas with co-channel interference
•Detect rogue APs
• Check the channel plan, that is, check channel s
e
ttings and APs coverage area.
5.2.1 Show RSSI
The Show RSSI menu item disp
lays information in the handset LCD about the received signal
strength, the current and previously associated APs and whether the handset is in power
save or active mode during the association. To show RSSI information directly in the handset
display without na
vigating through the Site Survey tool menu, use the shortcut **#76#.
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